Federer powers through

World number one Roger Federer put in an uncharacteristic error-filled display in his 100th Grand Slam match but still managed a 7-5 7-5 7-6 (7/2) victory over Fabrice Santoro in the second round of the US Open.

Federer made 32 unforced errors, compared to just 15 for the Frenchman who was composed and played with control at Flushing Meadows.